In which episode did Ma Dashuai go crazy?

28 episodes, TV series "Ma Dashuai" episode 28, the test results confirm that Fan Debiao (Fan Wei) has nothing to do with "Sargam" pregnancy. He ran all the way in the street excitedly and fell into the waterway. Because Fan Debiao (Fan Wei) who was frightened suddenly went crazy, Ma Dashuai (Zhao Benshan) had to send Fan Debiao (Fan Wei) to a mental hospital for treatment. "Ma Dashuai" TV series type: comedy rural plot, starring: Zhao Benshan, Fan Wei, Wang Zhaogang and Zhang Yajie Xiaoguang.